class Solution:
    def twoSum(self, nums, target):
        for i in range(len(nums)):
            for j in range(i+1, len(nums)):
                if nums[i] + nums[j] == target:
                    return i, j


if __name__ == '__main__':
    sl = Solution()
    index1, index2 = sl.twoSum([2, 7, 11, 15], 9)
    print(index1, index2)
